MANTECH seeks a motivated, career and customer-oriented Senior Database Administrator to join our Data and AI Practice. This position requires full-time on-site presence in Chantilly and/or Herndon, VA. The ideal candidate will play a critical role in designing, building, and optimizing data pipelines and architecture that support our enterprise-scale data initiatives in an IC customer space. This role demands technical expertise, strategic thinking, and hands-on experience with Oracle-based systems in high-volume environments. If you thrive in a fast-paced, data-driven organization and enjoy solving complex data engineering challenges, we want to hear from you.Responsibilities include but are not limited to:Designing, deploying, and maintaining cloud-based databases,Providing support for database management tasks, andEnsuring data security and integrity.Working closely with cloud infrastructure teams to ensure seamless integration of cloud base databases with applications and services.Performs complex duties and tasks that leverage domain expertise to implement Oracle products and technology to provide value to our customers.Minimum Qualifications:Must possess a Bachelor’s degree in a related field and at least 8 years of experience relevant to this position.Experience with US Government / IC customers enterprise systemsExperience with data architecture, engineering, and data modeling. Experience with managing structured and unstructured data, and knowledge of binary file types like Parquet, Hudi, Iceberg, Delta LakeExperience integrating Oracle databases with big data platforms such as Hadoop, Spark, or cloud-based data lakes. Familiarity with Oracle SQL, MySQL, PostgreSQL, MongoDB, or Oracle Database EngineeringSenior Oracle DBA with experience in Oracle Database Installations and Upgrades (version 19c preferred).DBA experience Including the following Database technologies:RAC (Real Application Clusters), Multitenant (create, cloning, dropping, CDBs and PDBs),Data Guard (Physical Standby and Active Data Guard), Unified Auditing, RMAN (Recovery Manager), DB patching,hardening / STIG'ing, Oracle Automated Storage Management (ASM), Database troubleshooting/Fault identificationExperience writing SQL/PLSQL code. Experience with Linux (use & navigation, and shell scripting knowledge). Experience configuring and querying Oracle AuditPreferred Qualifications:Master’s degree preferredOracle Database Certified Associate, Oracle Database Certified Professional or Oracle Cloud Infrastructure CertificationsExperience with the Oracle Label Security optionExperience with Oracle Data Vault or experience with Oracle Key VaultOracle GoldenGate experience a plus and knowledge of software life cycle and CM practicesClearance Requirements:Must possess a current and active TS/SCI security clearance with PolygraphPhysical Requirements:The person in this position must be able to remain in a stationary position 50% of the time.Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.